Hypertek J-class Hybrid Motors
The Hypertek J-class hybrid rocket motors provide an affordable per flight entry into J-class and K-class High Power Rocketry. The Hypertek system also introduces the unique benefit of a pyrotechnic free ignition system, utilising instead, an electronic spark ignition system.
The Hypertek J-class hybrid rocket motors are available in standard J-class configuration, which enables both the combustion chamber and the oxidiser tank to fit into a standard 54mm diameter airframe, and the Hammerhead J-class configuration, which uses a larger diameter oxidiser tank, and introduces a motor that actually falls into the K-class total impulse.
The 2 Hypertek J-class motors which use the larger diameter Hammerhead tanks, are now also available with a standard 54mm diameter oxidiser tank (similar to the other standard J-class motor oxidiser tanks only longer), so both motor systems can be completely fitted into a standard 54mm diameter airframe tube.
The table below provides some technical details as to the dimensions and performance of the Hypertek J-class hybrid rocket motors:
| TMT Designation |
Hypertek Designation |
Orifice Size (In) |
Burn Time (Sec) |
Total Impulse (Ns) |
Average Thrust |
N2O Weight |
Motor Weight |
Maximum Diameter |
Motor Length |
I-310 |
440-172-J Standard 54mm J |
.172 | 2.0 | 623 | 31.81 kg 70 lb |
0.36 kg 0.80 lb |
1.32 kg 2.91 lb |
54mm 2.125" |
645mm 25.38" |
| J-110 | 440-076-J Standard 54mm J |
.076 | 6.2 | 716 | 11.81 kg 26 lb |
0.36 kg 0.80 lb |
1.32 kg 2.91 lb |
54mm 2.125" |
645mm 25.38" |
| J-150 | 440-086-J Standard 54mm J |
.086 | 5.1 | 752 | 15 kg 33 lb |
0.36 kg 0.80 lb |
1.32 kg 2.91 lb |
54mm 2.125" |
645mm 25.38" |
| J-175 | 440-098-J Standard 54mm J |
.098 | 4.0 | 708 | 18.18 kg 40 lb |
0.36 kg 0.80 lb |
1.32 kg 2.91 lb |
54mm 2.125" |
645mm 25.38" |
| J-220 | 440-110-J Standard 54mm J |
.110 | 3.3 | 721 | 22.73 kg 50 lb |
0.36 kg 0.80 lb |
1.32 kg 2.91 lb |
54mm 2.125" |
645mm 25.38" |
| J-250 | 440-125-J Standard 54mm J |
.125 | 2.6 | 659 | 25.91 kg 57 lb |
0.36 kg 0.80 lb |
1.32 kg 2.91 lb |
54mm 2.125" |
645mm 25.38" |
| J-300 | 835-172-J Hammerhead J |
.172 | 4.1 | 1219 | 30 kg 66 lb |
0.69 kg 1.51 lb |
1.83 kg 4.03 lb |
82mm 3.200" |
553mm 21.75" |
| K-240 | 835-125-K Hammerhead J |
.125 | 6.0 | 1446 | 24.55 kg 54 lb |
0.69 kg 1.51 lb |
1.83 kg 4.03 lb |
82mm 3.200" |
553mm 21.75" |
| J-300 | 835-172-J New Hammerhead-J 54mm diameter tank |
.172 | 4.1 | 1219 | 30 kg 66 lb |
0.69 kg 1.51 lb |
1.83 kg 4.03 lb |
54mm 2.125" |
775mm 30.5" |
| K-240 | 835-125-K New Hammerhead-J 54mm diameter tank |
.125 | 6.0 | 1446 | 24.55 kg 54 lb |
0.69 kg 1.51 lb |
1.83 kg 4.03 lb |
54mm 2.125" |
775mm 30.5"" |
All components for the Hypertek J-class hybrid motors, including spare tanks, are available, as well as the Hypertek ground support system.
NOTE: You will need a supply of liquid nitrous oxide, gaseous oxygen and a hybrid fill system for these motors.
For further details, please call +44(0)1529 460279 or E-mail slackpete@rocketry.co.uk